<html>
<body>
<form>
    <input type="submit" value="input_submit_1"></input>
    <input type="submit" value="input_submit_2"></input>
    <input type="submit" value="input_button_3"></input>
    <input type="submit" value="input_button_4"></input>
    <input type="image"  src="CheckButton.gif"></input>
</form>
<button>tag_button_1</button>
<button>tag_button_2</button>
<button id="test_id_1">button_with_id</button>
<button id="test_id_2">button_with_id</button>
</body>
</html>
